Top Doc Films describes this as:
We would say it's also an excellent example of that incredible machine which was the wartime office of propaganda in Britain during the second world war; at the risk of sounding grotesque, it is very nearly inspiring in the way it uses language and imagery to program people's minds and indoctrinate society into an overt government agenda. "After Mein Kampf" could be regarded as a master in its own perverse genre, docsploitation (a genre we here at AltDocs just invented while typing this); and while it is so obviously silly and demented, it reflects in a weird and often frightening way, our own modern media. Fascinating, to say the very least.
added by: bill